Drawing frame for spinning machines



Oct. 27,1925} 7 1,559,383

H. TSCHUDY DRAWING FRAME FOR .SPINNING MACHINES Filed March so. 1925- nl mi w A llllllllml' I INVENTOR #E/VRY Tic/way v the wear and friction upon said bearings cal Patented Oct. 27, 1925.

unite-n s'r ATEiS HENRY scHnnY, OF-ENNENDA, S ITZERLA .assieNon'ro-j'rscnirny srINNI'Ne OR-PORATIONTO-F NEW Y oRmN; Y.,\ A. CORRORATION 01* NEW YORK;

DRAWING FRAME FOR SPINNING MACHINES;

Application filed March 30, 1925. Serial No. 19,195.

To all whom it may concern:-

Be it known that 1 HENRY TsorIUDY, a

citizen of Switzerland, residing at Ennend'a, Canton Glarus, Switzerland, have invented certain new and useful Improvements in Drawing- Frames for Spinning Machines,

ing frame relative to a horizontal planesoas to'eliminate insofar as possible, de-

cided or sharp angles in'the yarn as it isbeing drawnthrough the machine and onto the spindle. Y

By so tilting the frame; the bearings for the leather top rolls and the'heavy pressure rolls which engage said top rolls,- which bearings are perpendicular tothe plane of the drawing frame, are inclined forwardly so that practically the entire wear upon said bearings by engagementv of the shaftsof the rolls therewith is borne by the forward portions of" said bearings. Furthermore, it has been found, owing-to this-wear, that undue friction occurs both upon the bearings and the shafts of the rolls which;

interferes with the proper operation of the rolls and necessitates more or-l'ess frequent replacements.

According to the present invention the" bearings for the various: rolls are soar ranged wlth respect to the plane of the drawing frame as to reduce to a minimum and the shafts ofthe rollsmountedtherein, thusincreasing the operating efiicieney ofthe machine and prolonging the utility of the parts. a Y

The inventive idea involved is capable of receiving a variety of mechanical expressionsone ofwhich, forthe purpose-of illustration, is shown in the accompanying-draw ing; butit is to be expressly understood that said drawing is used merely to-facilitate the description of the inventionasa. whole and not to definethe limits thereof, reference being had to the appended claims for this purpose.

In the drawing Figure 1 is a vertical longitudinal secof the bearing members employed in Patent No.

tion through the spinning machine" substantiallyon theline 1'1 of'F igure 2 Figure 2 is 'afragmentary-front elevation; p v V Figure 3 is "a section takenon the line 3'3 ofFigure 4L; and p Figure 4; is aperspective view of oneconnectionwith the invention,

As shown in thedrawing the machin includes-a standard 5 uponwhich thed'r-awing frame is mounted, said frame consisting of upper and lower*sections' tiand" 7;

arranged in a forwardly and. downwardly inclined position. This disposition of the drawing frame is made for the purpose of eliminating from the yarn, as it passes from the bobbin through the drawing frame to thespindle, decided or sharp angles there inso that the yarn willbe in substantial alignment with the inclination-of"theframe. The upper section 7 of the frame may be adjustable relative to the lower section and.

secured in various adjusted. positions by means of the bolt28. The sections 6 and 7 support the usual; fluted lower front, intermediate' and rear drawing rolls 9, ,10' and ll", respectively, the shafts of-which are disposed in the customary bearings. A lower front clearerroll 12 is also supported by the frame in engagementwith the front I roll 9 and is provided with the customary feltfcover 1-3'which operates to remove the ffl'y from the roll 9. A similar clearer roll ltofa larger size than the roll' 12 is supported by a member 15 in engagement with the intermediate and rear drawingrolls 10 and 11. I

A hearing member, generally indicated bythe numeral 16, ismounted at itswrear end for pivotal movement upon a shaft 17 so thatsaid' member may be adjusted relative toqthedrawing frame and a set screw sition-j The rear portion of the bearing" horizontal-plane while the forward portion is downwardly inclined so as tobe in substantial' parallel relation to the} upper surface of thed r-aw-ing framewhen said memher. is resting thereon. The intermediate portion 19 of the bearing member is prois utilized forsecuringsaid, member in pomember 16 his arrangedin a, substantially v I vided with a vertically disposed support 20 for a purpose which will presently appear. Forwardly of the portion l9'the member 16 has a bearing 21 which is formed by cut ting away the member to provide oppositely disposed recesses 22, the sides-of which are vertically arranged when the member 16 is in its inclined and operative position. The member 16 further includes a second front bearing 23 formed in a manner similar to the bearing 21 and provided with a rearwardly projecting extension 24 mounted in a suitable groove 25 formed in the bottom of the member 16. This member 24 is slidable in said groove so as to permit of a longitudinal adjustment of the bearing 23. A bolt 26 extended through the portion 19 of the member 16 may be utilized to engage the extension 24 and secure the bearing 23 in its adjusted positions. A pressure roll 27 has the ends of its shaft disposed in the bearings 21 of the member 16 arranged on each side of the drawing frame and likewise the leather covered top rolls 28 have the ends of the shaft thereof disposed in the bearing 23 between the vertical side walls thereof. The vertical disposition of the sides of the bearings 21 and 23 in contradistinction to the inclination of said bearings as shown in the above mentioned patent, permits the shafts of the rolls 27 and 28 to bear with practically equal pressure against the sides of the bearings and thus eliminates the difficulty experienced with the mounting of the shafts in said patent, this difficulty being due to the shafts being practically entirely supported by the front sides of the bearings in which they are mounted, thus occasioning undue wear and friction upon said sides and the shafts. WVith the present construction this wear and friction is relieved and the rolls 27 and 28 are free to move in a vertical plane relative to the lower drawing rolls 9 and 10.

A rear weighted feeding roll 29 is supported above and in engagement with the rear drawing roll 11 in the customary man ner.

The rear portion of the bearing 16 is utilized to support an arm 80, which also rests upon the upper end of the support 20 of the bearing member, said arm being adjustably secured in operative position by means of a bolt 81 extending through a slot 32 in the arm and projecting into an opening 33 in the bearing member. The forward end of the arm is bent to provide a bearing 34 of U shaped formation also having vertical sides and capable of receiving one end of the shaft 35 which supports the large weighted pressure rolls 36. One of the arms 30 is provided upon each side of the set of rolls and the latter are freely supported in the bearings 34 for vertical move menttherein so as to properly contact the top rolls 28 to exert the proper pressure thereon. It will be apparent that by arranging the sides of the bearing 34 in vertical planes the wear and friction which would be occasioned if said sides were inclined is eliminated and only a minimum amount of frictionand wear occurs between the bearings 34: and the ends of the shaft 35.

What is claimed is:

1. In a spinning machine, an inclined drawing frame, bearings supported thereby, top rolls having shafts supported in said bearings for only vertical movement therein, pressure rolls for said top rolls, and bearings having vertical sides for receiving therebetween the ends of said pressure rolls.

2. In a spinning machine, a forwardly and downwardly inclined drawing frame, a bearing member supported upon said frame in an inclined position and including a plurality of bearings, the sides of which are arranged in vertical planes, rolls having their shafts disposed between and engaging the opposed sides of said bearings and capable of only vertical movement therein, an arm supported above said bearing member and including a bearing having vertical sides, and a pressure roll having its shaft mounted between the sides of said bearing for vertical movement therein.

3. In a spinning machine, a forwardly and downwardly inclined drawing frame, a bearing member supported upon said frame in an inclined position and recessed on op posite sides to provide a plurality of bearings, the sides of which extend the depth of said member and are arranged in vertical planes, and rolls having their shafts disposed between and engaging the opposed sides of said bearings and capable of only vertical movement therein.

4. In a spinning machine, a forwardly and downwardly inclined drawing frame, a bearing member supported upon said frame in an inclined position and recessed 011 0pposite sides to provide a plurality of bearings, the sides of which extend the depth of said member and are arranged in vertical planes, one of said bearings having an extension slidable longitudinally of said member to adjust said bearing relative to the other bearing, means to secure said extension in adjusted position, and rolls having their shafts disposed between and engaging the opposed sides of said bearings and capable of only vertical movement therein.

In testimony whereof I have afiixed my signature.

HENRY TSCHUDY. 

